This car stereo was found on Eugene Felix Martinez. Boulder police are looking for the owner of this item. (Boulder police)

Eugene Felix Martinez (Denver Police Department)

Boulder police believe an escaped Denver sex offender arrested on new charges in Boulder earlier this month may have been involved in other burglaries and assaults in the area.

Eugene Felix Martinez, 48, was arrested in a transient camp in the 1600 block of Arapahoe Avenue on Oct. 19. Boulder police tracked him there within an hour of receiving a report of a burglary and possible sexual assault in the 700 block of Marine Street.

Martinez, who alsowas wanted on an escape warrant at the time, was charged with sexual assault, attempted sexual assault, two counts of burglary, theft and attempted second-degree assault on a police officer.

Boulder police are looking for the owner of this ring, found with Eugene Felix Martinez. (Boulder police)

Boulder police searched the transient camp and located a number of items that did not belong to the women in the house on Marine Street, investigators said. Police have linked Martinez to one other sex assault and two other burglaries in Boulder.

Investigators are concerned that Martinez may have assaulted other victims who have not come forward, police said.

Boulder police have released photos of some of the items and have posted photos of all of the items on the department website. Investigators want people to look at the photos and contact police if they recognize any of the items as belonging to them.

Some of the property found at the camp includes a multi-use tool, a University of Colorado pendant necklace, sheet music with handwritten notations, keys, an HP laptop, ear buds, pens, possibly for use by artists, body lotion, a Pioneer car stereo with box, a yellow and white makeup bag with makeup items and an asthma inhaler, underwear, tennis shoes, a ring and a bicycle.

Anyone with information about these items or who believes they may have been a victim of Martinez is asked to call Boulder police Detective Jeremy Frenzen at 303-441-1890. T

hose who have information but wish to remain anonymous can call Crime Stoppers at 1-800-222-TIPS or 1-800-444-3776. Tips can also be submitted online at www.crimeshurt.com.

Those who submit tips that lead to an arrest and filing of charges may be eligible for a cash reward of up to $1,000 from Crime Stoppers.

Martinez is scheduled for a preliminary hearing on the Boulder charges on Dec. 12.

Sheet music with notations found with Eugene Felix Martinez. Boulder police are looking for the owner of this item. (Boulder police)

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